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Finding the Fourth Proportional to 185,886.90, 278,832.78 and 73,518.84

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Solution

The fourth proportional to 185,886.90, 278,832.78 and 73,518.84 is: 110,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,886.90 : 278,832.78 = 73,518.84 : x
  2. Step 2: Convert to fraction form
    185,886.90/278,832.78 = 73,518.84/x
  3. Step 3: Cross multiply
    185,886.90x = 278,832.78 × 73,518.84
  4. Step 4: Simplify right side
    185,886.90x = 20,499,462,539.58
  5. Step 5: Solve for x
    x = 20,499,462,539.58/185,886.90
  6. Step 6: Final answer
    x = 110,279.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.